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G. W. STUFFER.

l Spoke Tenon.

' Patented Aug. 4, 1868.

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Letters Pdt-ent No. 80,678, detect August 4, 1868. Y

IMPROVEMENT IN SPOKE-TBNONS.

ein rtetirle nient triiu tigen tetters utnt mit making met tf ttesme.

'ro ALL wHoM 1r MAY GONGERN: v

Be it known that I, GEORGE W. STOUFFE'R, of Lewistown, in the county of Miiiiin, and State of Pennsylvrenie., have `invented a. new and useful Improvement in Spoke-Tenons; and'I do' hereby declare the following to'be a full, clear, and exeetdescription thereof, reference being had to the accompenying drawing, which isl made e part of this specification.` A I i My improvement consists in forming the tenon of a. spoke with eoncavities or grooves in some or all of its sides, said concavities or grooves servingy to facilitate driving the spoke, as the'frictional surface is greatly Y reduced; to preserve the dish, or to preserve the straightness of the wheel when no dish is desired; and also,

when the spoke 'is driven with white leed or glue, to retain said substancein its grooves, and thus, by distributing it asdesired, increase its eeetivenesm'the common Vforms ofk tenons always driving the major part ot' tho substance either out of` or to the bottom of the mortise.

In the drewing-` i i Figure 1 is a perspective view of a`portion of a. spoke provided with my improved tenon. I

Figure 2 is anA edge view of the same in position in the hub, a segmentof which is shown in red lines in transverse section.

Figure 3 isa side viewv and longitudinal section of the respective parts represented in `iig. 2, a corner of 'the` tenon being broken awey, to more Ifully represent its construction.

Amay represent the body of the spoke, and B the tenen.V The sides of the latterl provide' with transverse grooves, @preferably so arranged as to give the sides of the tenon, or at least the lower end of the seme, an undulating surface, the surface of the upper end, b1, being preferably left plane. The hack of the form of tenon representedhas n longitudinal groove, b2, which is-found to best preserve the dish of the spoke, the edge or side not thus provided having'fgrooves, h3, corresponding with the ones b. When the tenen is straight, a groove similar to b2 is also providediinits'front edge, so as to supportiit equally in both directions.

I propose using my improvement in anyof' thedifferent lforms of driven tenons adapted for its reception, and regulziting the number and position of the grooves, as may be found best adapted for the form of tenon in which used. i Y

It is also obvious that in the form of tenen represented, some of the grooves may, when preferred, be dispensed witiyor the number of them increased, without departing from the invention. 4

Having thus described my invention, I claim as-new therein, and desire to secure by Letters Patent-f The provision in a spoke-tenen of the grooves or eoncavities b, b2, b3, employed und operating as described for the purposes specified. y i

To the abovev specification of my improvement in spoke-tenons, I have signed my hand, this 22d day of June, 1868. i

- G. W. STOUFFER.

Witnesses:

Jos. S. WAncAM, W. H. BnA'r'roN. 

